Try using the instruments on the camera for focusing more than your eyesight. It will take a little getting used to but can be done. My vision is never in focus which is a real issue for photography so I have to rely on my camera. I agree with the ophthalmologist is the only way to go here. He/she may be able to help get you back in focus.
You will have best of all worlds. The Canon adapter seems to work much better than the Nikon. If you have Nikon lenses then at least you will be able to use them as well. Sony lenses are great but so are the Nikon and Canon and some of the Sigma and Tamron so you will be well rounded in your selection of lenses. Have fun and experiment.
Check your exposure compensation, you may have moved it without knowing you did.
Your lenses are fine. Be more concerned about the lighting.
You can make money with photography, if you want to. You have to want to. It has to be a passion not only for the art but also for the business end. Follow your dreams. The saying "I can do this" or "I can't do this" are both true.
absolutely, Im totally addicted and dont want to be helped!
Look at the You Tube videos from Gary Fong on both these cameras to help in your decision. If it was me I'd go for the 6500. Just depends on your budget.
35mm is excellent for shooting more curvy women. Check out Sue Bryce "posing curvy women" . She has won several WPPI awards with that lens for her portraiture.
The one time I used auto ISO was when documenting a family reunion and the sun was in and out. Drove me nuts. I wanted a specific shutter speed 125, and low aperture 2.8. Saved me a lot of grief. Other than that I have not used auto ISO, too much of a control freak I guess.
I have 3 Sonys and I love them all. Looking to purchase the A9 soon. I shoot weddings and fine art portraiture, my cameras have to preform to their best. I have never been disappointed. Check out what other pros say, You Tube or google Gary Fong, Jason Lanier, Scott Robert Lim just to name a few.
I recommend the camera that meets your needs, your budget and one you will love to use. When needs change start upgrading as budget allows.
I am a huge Sony fan and own 3 mirroless cameras, make sure you check them out. There is one for every budget. The best mirroless camera is the one you like to use so check all brands out and see which one suites you the best.
No using a 55mm or 85 mm prime I have had no issues.
I use 2 speedlights and have had great success with that. My main light is shot through an umbrella. the second is used for a hair light. I usually shoot at 2.8, 1/125 and the ISO varies from 100 to 640 depending on indoors or out. I just bought a Godox AD200 to use as a main light and I love it. Its about the power of 3 speedlights so I turn it way down.